粉煤灰的改性及吸附作用的研究  

A Study of Modification of Fly and lts Adsorption Performance

作　　者：王金梅[1] 王庆生[2] 刘长占[1] 周宏博 陈德慧[2] 郝永利[2] 

机构地区：[1]承德石油高等专科学校,河北承德067000 [2]中国环境科学研究院,北京100012 [3]北京中科绿谷科技有限公司,北京100076

出　　处：《工业用水与废水》2005年第1期44-47,共4页Industrial Water & Wastewater

摘　　要：采用单因子试验的方法,选择合适的改性剂,研究了粒径大小、吸附等温线、溶液pH值等因素对改性粉煤灰吸附性能的影响,并对改性粉煤灰吸附机理进行了研究。研究结果表明,改性灰的吸附效果优于粉煤灰,极大的提高了对难降解染料废水的去除能力,在pH值大于11,投加量为20g/L时,CODCr去除率可达95%以上。The effects of particle size, adsorption isothermal curve, pH value of solution, etc. on the adsorbability of modified fly ash were studied using a method of one-factor experiment and selected proper modifier, and the adsorption mechanism of modified fly ash was studied, too. The results of the research show that the adsorption effect of modified fiy ash is better than that of fly ash, which greatly improves the removal ability for the wastewater from dyestuff industry that is hardly degradable. When pH value is above 11 and dosage is 20 g/L, the removal rate of COD may be as high as 95% or even higher.

关 键 词：改性粉煤灰 吸附材料 性能 

分 类 号：X788[环境科学与工程—环境工程]